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Finding the Fourth Proportional to 329,246.20, 494,063.70 and 118,856.80

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Solution

The fourth proportional to 329,246.20, 494,063.70 and 118,856.80 is: 178,355.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,246.20 : 494,063.70 = 118,856.80 : x
  2. Step 2: Convert to fraction form
    329,246.20/494,063.70 = 118,856.80/x
  3. Step 3: Cross multiply
    329,246.20x = 494,063.70 × 118,856.80
  4. Step 4: Simplify right side
    329,246.20x = 58,722,830,378.16
  5. Step 5: Solve for x
    x = 58,722,830,378.16/329,246.20
  6. Step 6: Final answer
    x = 178,355.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.